Test Bank NUR 265
Exam 2 Review:
Respiratory &
Electrolyte
Imbalances
Questions and
Answers Latest
2026
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NUR-265 Exam 2 review
Respiratory Recap
Table 14.2 can be found on p. 275
Electrolyte Imbalances
(Table 39.6 in Fundamentals book)
Hyponatremia Cause: SIADH, Addison’s
NA < 135
Clinical Manifestations:
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, lOMoAR cPSD| 64664050
NUR-265 Exam 2 review
Lethargy, confusion, weakness, muscle cramps, seizures, Anorexia,
nausea, vomiting
Hypernatremia Cause: Cushing’s disease
NA > 145
Clinical Manifestations:
Thirst, dry and sticky mucous membranes, weakness, elevated
temperature
Severe hypernatremia: confusion and irritability, decreased
LOCs, hallucinations, and seizures
Hypokalemia Cause: Hyperaldosteronism, potassium wasting diuretics
K+ <3.5
Clinical Manifestations:
Weak, irregular pulse, fatigue, lethargy, anorexia, nausea, vomiting
muscle weakness and cramping, decreased peristalsis, hypoactive
bowel sounds, paresthesia, cardiac dysrhythmias, increased risk for
digitalis toxicity
Hyperkalemia Causes: DKA, potassium sparing diuretics
K+ >5
Clinical Manifestations:
Anxiety, irritability, confusion, dysrhythmias (bradycardia and heart
block), muscle weakness, flaccid paralysis paresthesia and abdominal
cramping
Hypocalcemia Causes: Hypoparathyroidism
Ca <9
Clinical Manifestations:
Confusion, anxiety, numbness and tingling of extremities, muscle
cramps that progress to tetany and seizure s, hyperactive reflexes,
cardiac dysrhythmias a nd positive Chvostek and Trousseau signs
Hypercalcemia Causes: Hyperparathyroidism,
Ca >10.5
Clinical Manifestations:
Lethargy, stupor, coma, decreased muscle strength and tone anorexia,
n/v, constipation, pathologic fractures, dysrhythmias and renal calculi
Downloaded by Weykey Pinn ()
, lOMoAR cPSD| 64664050
NUR-265 Exam 2 review
Downloaded by Weykey Pinn ()
Exam 2 Review:
Respiratory &
Electrolyte
Imbalances
Questions and
Answers Latest
2026
, lOMoAR cPSD| 64664050
NUR-265 Exam 2 review
Respiratory Recap
Table 14.2 can be found on p. 275
Electrolyte Imbalances
(Table 39.6 in Fundamentals book)
Hyponatremia Cause: SIADH, Addison’s
NA < 135
Clinical Manifestations:
Downloaded by Weykey Pinn ()
, lOMoAR cPSD| 64664050
NUR-265 Exam 2 review
Lethargy, confusion, weakness, muscle cramps, seizures, Anorexia,
nausea, vomiting
Hypernatremia Cause: Cushing’s disease
NA > 145
Clinical Manifestations:
Thirst, dry and sticky mucous membranes, weakness, elevated
temperature
Severe hypernatremia: confusion and irritability, decreased
LOCs, hallucinations, and seizures
Hypokalemia Cause: Hyperaldosteronism, potassium wasting diuretics
K+ <3.5
Clinical Manifestations:
Weak, irregular pulse, fatigue, lethargy, anorexia, nausea, vomiting
muscle weakness and cramping, decreased peristalsis, hypoactive
bowel sounds, paresthesia, cardiac dysrhythmias, increased risk for
digitalis toxicity
Hyperkalemia Causes: DKA, potassium sparing diuretics
K+ >5
Clinical Manifestations:
Anxiety, irritability, confusion, dysrhythmias (bradycardia and heart
block), muscle weakness, flaccid paralysis paresthesia and abdominal
cramping
Hypocalcemia Causes: Hypoparathyroidism
Ca <9
Clinical Manifestations:
Confusion, anxiety, numbness and tingling of extremities, muscle
cramps that progress to tetany and seizure s, hyperactive reflexes,
cardiac dysrhythmias a nd positive Chvostek and Trousseau signs
Hypercalcemia Causes: Hyperparathyroidism,
Ca >10.5
Clinical Manifestations:
Lethargy, stupor, coma, decreased muscle strength and tone anorexia,
n/v, constipation, pathologic fractures, dysrhythmias and renal calculi
Downloaded by Weykey Pinn ()
, lOMoAR cPSD| 64664050
NUR-265 Exam 2 review
Downloaded by Weykey Pinn ()
